Going back to the circuit we started with, you can see that the electrical power is calculated by multiplying together the...

Physics Narrative 11-14

Let's think about making a pot of tea. Boiling enough water for a pot of tea takes 180 second with my kettle. The kettle is...

Physics Narrative 11-14

The power in the heating by radiation pathway is measured in watts. That's simple and is often called the radiant power. More...

Physics Narrative 14-16